What % of students struggle and never really get the maths? What % do fine with the maths but never need them in their adult lives? I would argue this is far mo

What % of students struggle and never really get the maths? What % do fine with the maths but never need them in their adult lives? I would argue this is far more than 75% of all people. Same can be argued probably with higher %s for foreign language in the us. I think learning advanced maths and foreign languages are great but I also think we waste insane amounts of human potential and $$$ with the way we go about it.